Method for Measuring Sign Recognition Ability in Learners of American Sign Language (ASL) as a Second Language

摘要

A method for measuring sign (lexical) recognition ability in American Sign Language (ASL) embodies an adaptive sign recognition test that includes a calibrated item pool, each item having a difficulty value (d_i) and associated standard error (s_e). Test items are administered to a group of individuals spanning a wide range of ASL abilities to obtain responses. The responses are subjected to Rasch scaling analysis. The adaptive sign recognition test can be administered to an individual to determine their level of ability in ASL.